Fluke DDS Function Generator 271 - Manual (Page 14)

271
Getting Started Manual
The Liquid Crystal Display
The 4-line x 20-character LCD panel is used to display
and edit all the parameter values. The paradigm used for
selecting fields and editing values is described below.
If necessary (because of temperature variations etc.), you
can adjust the display contrast using a small screwdriver
or trimmer tool inserted in the hole marked LCD.
At power-up the instrument goes through a self-test cycle
and the display shows the firmware revision number for a
few seconds. If any tests fail, the display will show a
message indicating the nature of the fault; if this happens,
refer to the Users Manual.
The display shown above is called the "main menu" and
shows the frequency (or period), amplitude, dc offset and
symmetry of the waveform. Other menus, called "edit
menus", are called when you press the EDIT key followed
by a MODE key.
If the main menu display is not as shown in figure 1 above
then you should reset all settings to their factory defaults.
Do this by pressing RECALL, then the numeric 0 key,
then ENTER.
Controls
Function Keys
These three keys are used
to choose between the
basic waveforms: sine,
square and triangular
waves, and pulses and
ramps of either polarity.
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Repeated presses of a key will cycle the selection through
the two or three choices offered. The associated LED will
light.
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